英文關鍵字
action
automated
burn
business
cargo
cnc
construction
constructions
crane
cutting
detail
device
dust
electrical
energy
equipment
factory
fire
flame
flat
gas
hard
heating
heavy
hot
industry
instrument
iron
job
laser
machine
machinery
manufacture
mechanism
melting
metal
metalwork
nozzle
oxygen
plasma
process
production
professional
robot
sheet
sparks
steel
structures
tool
works
workshop